140353220 has 24 divisors (see below), whose sum is σ = 336848064. Its totient is φ = 48121056.

The previous prime is 140353211. The next prime is 140353229. The reversal of 140353220 is 22353041.

It is a happy number.

140353220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (140353211) and next prime (140353229).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 140353192 and 140353201.

It is not an unprimeable number, because it can be changed into a prime (140353229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 501122 + ... + 501401.

It is an arithmetic number, because the mean of its divisors is an integer number (14035336).

Almost surely, 2^140353220 is an apocalyptic number.

140353220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

140353220 is an abundant number, since it is smaller than the sum of its proper divisors (196494844).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

140353220 is a wasteful number, since it uses less digits than its factorization.

140353220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002539 (or 1002537 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 140353220 is about 11847.0764326056. The cubic root of 140353220 is about 519.6857321977.

The spelling of 140353220 in words is "one hundred forty million, three hundred fifty-three thousand, two hundred twenty".